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Investigations of Optical Coherence Properties in an Erbium-doped Silicate Fiber for Quantum State Storage

Staudt, Matthias U.
Hastings-Simon, Sara R.
Published in Optics Communications. 2006, vol. 266, p. 720-726
Abstract We studied optical coherence properties of the 1.53 $mu$m telecommunication transition in an Er$^{3+}$-doped silicate optical fiber through spectral holeburning and photon echoes. We find decoherence times of up to 3.8 $mu$s at a magnetic field of 2.2 Tesla and a temperature of 150 mK. A strong magnetic-field dependent optical dephasing was observed and is believed to arise from an interaction between the electronic Er$^{3+}$ spin and the magnetic moment of tunneling modes in the glass. Furthermore, we observed fine-structure in the Erbium holeburning spectrum originating from superhyperfine interaction with $^{27}$Al host nuclei. Our results show that Er$^{3+}$-doped silicate fibers are promising material candidates for quantum state storage.
Stable URL https://archive-ouverte.unige.ch/unige:12868
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Deposited on : 2010-12-13

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